DUSPOL digital. Digital true RMS voltage tester. Suitable for electrical engineering, industry, maintenance, service (troubleshooting), photovoltaic/wind power systems and hybrid vehicle technology. Test type 2-pole. Backlighting of the LC display. Voltage display LED/LCD. Voltage measuring range 1 V - 1000 V AC/ 1200 V DC. Voltage display from 50 V eve